Date published: 2025-10-18

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5-(Chloromethyl)isoxazole-4-carboxylic acid (CAS 870704-27-1)

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CAS Number:
870704-27-1
Molecular Weight:
161.54
Molecular Formula:
C5H4ClNO3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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5-(Chloromethyl)isoxazole-4-carboxylic acid has limited solubility in water but dissolves readily in organic solvents like ethanol and acetone. The compound is stable and exhibits good thermal and hydrolytic resistance. Its chemical makeup includes a chloromethyl group, making it a reactive substance capable of engaging in multiple nucleophilic substitution reactions. This compound is frequently employed as a precursor in the creation of a range of biologically significant compounds, including cephalosporin antibiotics, fungicides, and herbicides. Additionally, it serves as both a reagent and a catalyst in organic chemical synthesis.


5-(Chloromethyl)isoxazole-4-carboxylic acid (CAS 870704-27-1) References

  1. Stereoselective synthesis of novel uracil polyoxin C conjugates as substrate analogues of chitin synthase.  |  Plant, A., et al. 2008. J Org Chem. 73: 3714-24. PMID: 18433174
  2. Application of the Ugi reaction for the one-pot synthesis of uracil polyoxin C analogues.  |  Plant, A., et al. 2009. J Org Chem. 74: 4870-3. PMID: 19456169
  3. Decoding split and pool combinatorial libraries with electron-transfer dissociation tandem mass spectrometry.  |  Sarkar, M., et al. 2013. J Am Soc Mass Spectrom. 24: 1026-36. PMID: 23636859

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

5-(Chloromethyl)isoxazole-4-carboxylic acid, 1 g

sc-233185
1 g
$82.00